CORRELATION AND PREDICTION OF DENSE FLUID TRANSPORT-COEFFICIENTS .2. SIMPLE MOLECULAR FLUIDS

A previously-described method is used for the simultaneous correlation of the coefficients of self-diffusion, viscosity and thermal conductivity for acetonitrile, carbon disulphide, tetrachloromethane, cyclohexane, ethene and trichloromethane at densities above the critical density. The method, which has been developed from consideration of exact hard-sphere theory of transport properties, introduces just two molecular parameters; a characteristic volume V0 and a roughness factor R, which take into account departure from spherical shape and molecular roughness. Values are given for these parameters. For a given compound, V0 is temperature dependent but has the same value, at a given temperature, for the different properties. The R factor has a different value for each property, but these are independent of temperature and density.